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DD269208A1
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Device for removing exhaust gases and / or smoke gas from boiler
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DD266972A1
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Device for increasing the separator wheel for radiating gas waist
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DD266278A1
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Device for generating another homogeneous two-phase flow in a short mixture line
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DD261622A1
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Plate element for sound prevention wall
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DD269972A3
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Device for increasing the separating wheel and reliability in the gas waste
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DD239342A1
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Waermerueckgewinnungsanlage
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DD217612A1
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Device for using hot exhaust gases
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DD242861A1
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Abgaswaermeenergieabsorber
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DD226359A1
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EVAPORATION heat exchanger
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DD217611A1
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Energy absorption with media of different density
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DD213487A1
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Abwasserwaermeenergieabsorber
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DD205514A1
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Air-water heat exchanger
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DD205508A1
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Flat absorber with autark auxiliary power generation
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